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Default value of primitive data types in Java
Primitive datatypes are predefined by the language and named by a keyword in Java. Here is an example to display the default value of primitive data types.
Example
public class Demo {
static boolean val1;
static double val2;
static float val3;
static int val4;
static long val5;
static String val6;
public static void main(String[] args) {
System.out.println("Default values.....");
System.out.println("Val1 = " + val1);
System.out.println("Val2 = " + val2);
System.out.println("Val3 = " + val3);
System.out.println("Val4 = " + val4);
System.out.println("Val5 = " + val5);
System.out.println("Val6 = " + val6);
}
}Output
Default values..... Val1 = false Val2 = 0.0 Val3 = 0.0 Val4 = 0 Val5 = 0 Val6 = null
Above, firstly we have declared variables of specific type. Remember, to get the default values, you do not need to assign values to the variable.
static boolean val1; static double val2; static float val3; static int val4; static long val5; static String val6;
Now to display the default values, you need to just print the variables.
System.out.println("Val1 = " + val1);
System.out.println("Val2 = " + val2);
System.out.println("Val3 = " + val3);
System.out.println("Val4 = " + val4);
System.out.println("Val5 = " + val5);
System.out.println("Val6 = " + val6);
Updated on: 26-Jun-2020
13K+ Views
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